Marker your calendars

The "Ink Calendar" by Oscar Diaz is on display in Madrid as part of Sueños de un Grifo, an exhibition about water and design.

A close cousin to our own beloved Water Clock, "Ink Calendar" makes use of the methodical pace of ink spreading across paper to keep time. In this self-updating piece, the ink is absorbed slowly, and filling in a new number daily, until the end of the month.

Diaz uses a spectrum relative to a color-temperature scale, assigning each month a color associated with our perception of the weather of that month. The colors range from dark blue in December to three shades of green in spring or oranges and red in the summer.



Another unique execution to show the slow, but relentless march of time. Plus, it beats watching paint dry.